CVE-2022-4283

2022-12-1421:15:14

Debian Security Bug Tracker

security-tracker.debian.org

x.org

vulnerability

local privileges

remote code execution

x server

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

0.002 Low

EPSS

Percentile

65.1%

JSON

A vulnerability was found in X.Org. This security flaw occurs because the XkbCopyNames function left a dangling pointer to freed memory, resulting in out-of-bounds memory access on subsequent XkbGetKbdByName requests… This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions.

OSVersionArchitecturePackageVersionFilename
Debian12allxorg-server< 2:21.1.5-1xorg-server_2:21.1.5-1_all.deb
Debian11allxorg-server< 2:1.20.11-1+deb11u4xorg-server_2:1.20.11-1+deb11u4_all.deb
Debian999allxorg-server< 2:21.1.5-1xorg-server_2:21.1.5-1_all.deb
Debian13allxorg-server< 2:21.1.5-1xorg-server_2:21.1.5-1_all.deb
Debian12allxwayland< 2:22.1.6-1xwayland_2:22.1.6-1_all.deb
Debian999allxwayland< 2:22.1.6-1xwayland_2:22.1.6-1_all.deb
Debian13allxwayland< 2:22.1.6-1xwayland_2:22.1.6-1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	xorg-server	< 2:21.1.5-1	xorg-server_2:21.1.5-1_all.deb
Debian	11	all	xorg-server	< 2:1.20.11-1+deb11u4	xorg-server_2:1.20.11-1+deb11u4_all.deb
Debian	999	all	xorg-server	< 2:21.1.5-1	xorg-server_2:21.1.5-1_all.deb
Debian	13	all	xorg-server	< 2:21.1.5-1	xorg-server_2:21.1.5-1_all.deb
Debian	12	all	xwayland	< 2:22.1.6-1	xwayland_2:22.1.6-1_all.deb
Debian	999	all	xwayland	< 2:22.1.6-1	xwayland_2:22.1.6-1_all.deb
Debian	13	all	xwayland	< 2:22.1.6-1	xwayland_2:22.1.6-1_all.deb